Adapting Extrusion Based Cantilever for Thermal Expansion. November 30, 2018 12:02AM |
Registered: 8 years ago Posts: 383 |
Re: Adapting Extrusion Based Cantilever for Thermal Expansion. November 30, 2018 01:59AM |
Registered: 5 years ago Posts: 4 |
Re: Adapting Extrusion Based Cantilever for Thermal Expansion. December 01, 2018 01:22AM |
Registered: 8 years ago Posts: 383 |
Re: Adapting Extrusion Based Cantilever for Thermal Expansion. December 01, 2018 01:43AM |
Registered: 7 years ago Posts: 5,232 |
Teflon tube is prettty good as a smooth rod guide. Tie-rap it for tighter contact if needed. Usually I just cut it diagonally and press it into the bracket = sort off self adjusting.Quote
Constrain smooth rods at one end only. Bronze bushings for other end?
Go for water cooled steppers, too. Much easier to implement than rebuilding the whole frame to put them outside the chamber. Especially the extruder motor should be direct drive IMHO.Quote
Water cooling is the only rel option past that.
Re: Adapting Extrusion Based Cantilever for Thermal Expansion. December 01, 2018 02:57AM |
Registered: 9 years ago Posts: 239 |
Re: Adapting Extrusion Based Cantilever for Thermal Expansion. December 01, 2018 03:10AM |
Registered: 8 years ago Posts: 383 |
Re: Adapting Extrusion Based Cantilever for Thermal Expansion. December 01, 2018 03:23AM |
Registered: 5 years ago Posts: 4 |
Quote
WesBrooks
Metal wheels can be used with it and being removable it can be repaced without dismantling the frame. Ok it is giving one more thing to align, but it is little different to smooth rod + extrusions on many reprap with error in alignment to the base extrusiin being more tightly controlled. That and it is aluminium alloy and so thermal expansion shouldn't be far enough out to need to leave one end unconstrained in other to avoid slight bending of the frame due to differential expansions.
Re: Adapting Extrusion Based Cantilever for Thermal Expansion. December 01, 2018 04:06AM |
Registered: 9 years ago Posts: 239 |
Quote
WesBrooks
That is toasty! Which material needs that heat - or is it more with the heat the part is better rather than 'need'? Heard that PC wasn't really happy until the bed temperature exceeded 135C.
Re: Adapting Extrusion Based Cantilever for Thermal Expansion. December 01, 2018 05:08AM |
Registered: 8 years ago Posts: 383 |
Re: Adapting Extrusion Based Cantilever for Thermal Expansion. December 01, 2018 09:19AM |
Registered: 10 years ago Posts: 5,734 |
Re: Adapting Extrusion Based Cantilever for Thermal Expansion. December 01, 2018 10:08AM |
Registered: 8 years ago Posts: 383 |